Extensible bedstead.



PATENTED MAY 2, 1905.

W. A. H. JONES. EXTENSIBLE BEDSTEAD.

APPLICATION FILED NOV.18, 1903.

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ATTORNEYS WI TNESSES:

No. 788,647. 7 PATENTED MAY 2, 1905. W. A. H. JONES EXTENSIBLE BEDSTEADI APPLIOATION FILED NOV.18, 1903.

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/ INVENTOI? A TTOhNE YS NITED STATES Patented May 2, 1905.

PATENT OFFICE.

WALTER A. H. JONES, OF PLYMOUTH, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO WILLIAM NELSON SNOW, OF PLYMOUTH, MASSACHU- SETTS.

EXTENSIBLE BEDSTEAD.

SPECIFICATION forming part of Letters Patent N 0. 788,647, dated May 2, 1905.

Application filed November 18, 1903. Serial No. 181,746.

To all whom, it may concern:

Be it known that I, WALTER A. H. J ONES, a citizen of the United States. and a resident of Plymouth, in the county of Plymouth and State of Massachusetts, have invented new and use ful Improvements in Extensible Bedsteads, of which the following is afull, clear, and exact description.

This invention relates to the class of extension-beds in which there is a main or stationary bed-section and a section movable with respect to the main section and which is placed alongside of the main section with the bedbottom in the same plane when in use, and when in the closed position the movable section is placed immediately on top .of the main section. Heretofore in such a construction it has been customary to have the movable section slidable to and from the main section. In such case it was necessary to provide suitable means for supporting the movable section during such sliding action, such as providing four feet on the same with casters or else suitable antifriction devices between the movable and the fixed bed-sections.

It is the purpose of the present invention to provide a connection between the movable and fixed bed-sections consisting of members so disposed that the movable section will be lifted up from its position when open or alongside the fixed section and thereupon placed upon the fixed section.

It is a further object to provide suitable springs in connection with said members, so as to assist said movement of the movable section during. the portion of its movement when it is raised and to offer a certain resistance to said movement when the movable section is being lowered from its highest intermediate positionthat is, whether the bed is being opened or being closed.

With these objects in view my invention comprises the novel features as hereinafter set forth and then particularly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 represents an end view of a bed embodying my invention in its preferred form, the movable section being indicated by dotted lines as being in the intermediate highest position. Fig. 2 is an end view, on a larger scale than Fig. 1, showing the bed in the closed position. Fig. 3 is a partial plan view of the bed in the open position; and Fig. 4 is a perspective view of the end portion only of the bed, parts being broken away for the sake of clearness.

Referring now to the accompanying drawings, the bed comprises What may be termed a fixed section A and'a movable section Bthat is, the section B is movable to and from the section A. The section A comprises a rectangular frame at one end, formed of members 12, 13, 1 1, and 15, which may be of angle-iron or of any other suitable construction and suitably connected together. These end members are connected by lateral bars 16 and 17.

The movable section B comprises end portions formed of a horizontal bar 18, that is secured to an upright 19, a brace 20 serving to strengthen the joint. An angle-plate 2O is seen-red at the joint.

The fixed bed-section is connected with movable bed-section preferably by a pair of links at each end, thus providing a parallel movement between the bar 18 of the movable section and the respectively adjacent bar 14 of the fixed member. These links comprise at each end a link 23, pivoted at its lower end at an intermediate or middle portion of the bar 12, while its upper end is pivoted to the inner end of the bar 18. This link is of such length that when the movable section is placed upon the fixed section the bed will be in vertical alinement, as best shown in Fig. 2. While one of these links 23 at each end of the bed would serve to assure a movement of the movable section to and from the bed, I preferably provide an additional link 24: at each end, pivoted at its upper end to the bar 18 at an intermediate portion of the same and pivoted at its lower end on the bar 12 of the fixed bed-section. This link 24 is of the same length as the link 23 and arranged with its pivotal points respectively equidistant from the pivotal points of the link 24:, thereby providing a parallel movement. From Fig. 1 it will be observed that when in the open position the top of the movable bed-section is in the same plane with the top of the fixed bed-section, and when in the closed position the top of the movable section will fit snugly upon the top of the fixed section, as best shown in Fig. 2.

In order to make the bed-bottom partially continuous when the bed is in the open position, I provide a series of hooked extensions 25, secured to the bed-bottom 26 of the movable section, so that when the bed is moved to the open position said hooked extensions will automatically engage the bed-bottom 26 of the fixed bed-section, and when the bed is closed these hooks will automatically disengage.

In order to facilitate the raising of the bed, so that it may be moved with comparatively little force, I provide at each end a pair of contractile coiled springs 27, connected between an intermediate portion of each lever- 23, and the upright members 13 and at their upper portions. hen the bed is in the closed position, the springs on one side of the bed at each end will be extended, and hence assist in raising the movable bed-section to its uppermost'position, and upon the bed being carried farther to its open position the springs on the other side of the bed at each end will be extended, thereby ofiering a resistance to the last part of this motion of the bed, and in the operation of closing the bed the action of these springs will be substantially the reverse, as will be readily understood.

Having th us described my invention, I claim as new and desire to secure by Letters Patent 1. In an extensible bedstead, the combination with a pair of bed-sections, one movable and the other stationary, links connecting the bed-sections at their ends, whereby the movable section may be moved from a position on top of the stationary section to a position alongside of said section, and thereby pass through a curved path lying in a vertical plane, a bed-bottompn each section, supporting-legs at the outer side of said movable section adapted to engage the floor when the movable section has descended to the same plane occupied by the stationary section, and rigid hooks projecting from the side of one of said bed-bottoms and adapted to automatically engage and disengage the adjacent side of the other bed-bottom.

2. An extensible bedstead, comprising a fixed section and a movable section, a pair of spaced parallel links at each end of the bed connected at their lower extremities with the fixed section and at their upper extremities with the movable section, the point of pivotal connection between one of each pair of links and the fixed section of the bed being about midway of said fixed section, and the point of pivotal connection between the upper end of the same link and the movable section being at the inner side of said latter section, said links being arranged to swing in vertical planes to carry the movable section back and forth from a position on top of the fixed section to a position at one side thereof, always supportingthe movable section in a horizontal position, and springs at each end of the bed interposed between the opposing bedposts and the link pivoted near the center of the fixed section, said springs having equal tension when said link is in a vertical position.

3. In an extensible bedstead, the combination of a pair of bed-sections, one movable and the other stationary, a bed-bottom for each section, pivotal connections between the two sections whereby the movable section is adapted to be elevated to occupy a position on top of the stationary section or to be lowered to occupy a position at the side of said stationary section to bring its bottom into the same plane with the bottom of the stationary section, and means for automatically connecting the adjacent sides of the two bottoms with each other, when both are brought to occupy the same plane, said means being also adapted for automatical disconnection when the movable bottom is elevated above the fixed bottom.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WALTER A. H. JONES.

Witnesses:

- WM. CHESTER KEITH,

F. RUSSELL Snow. 

